Oh no another complaint about Mobil making noise!!Valvoline conventional cannot be driven 10k without problems but it works for you it seems.
Originally Posted By: aquariuscsm
I've tried Synpower,Valvoline conventional,and M1 in my gf's 4.0 V6 Mustang,and Synpower and Valvoline conventional ran much smoother and quieter than M1. My vote would actually be Valvoline conventional for that engine. M1 was really noisy in it.
Originally Posted By: aquariuscsm
I've tried Synpower,Valvoline conventional,and M1 in my gf's 4.0 V6 Mustang,and Synpower and Valvoline conventional ran much smoother and quieter than M1. My vote would actually be Valvoline conventional for that engine. M1 was really noisy in it.